body {
  min-width: 320px;
  margin: 0 auto;
  max-width: 750px;
  background-color: #f2f4f7;
}
a {
  text-decoration: none;
  
}
@media screen and (min-width: 750px) {
  html {
    font-size: 37.5px !important;
  }
}
.wrap {
  background-color: #fff;
}
header {
  text-align: center;
  border-bottom: 0.026667rem solid #eaeaea;
  font-size: 0.933333rem;
  font-family: Microsoft YaHei Regular, Microsoft YaHei Regular-Regular;
  font-weight: 400;
  box-sizing: border-box;
  padding: 0.266667rem;
}
.nav_content {
  display: flex;
  flex-wrap: wrap;
}
.nav_content a {
  display: flex;
  flex-direction: column;
  flex: 33.33%;
  align-items: center;
}
.nav_content a img {
  width: 1.866667rem;
  height: 1.866667rem;
}
.nav_content a span {
  opacity: 1;
  font-size: 0.533333rem;
  font-family: Arial Regular, Arial Regular-Regular;
  font-weight: 400;
  text-align: left;
  color: #707070;
  line-height: 0.72rem;
  letter-spacing: 0.026667rem;
}
.go_module {
  background-color: #fff;
  margin: 1.6rem 0.266667rem 0 0.266667rem;
  text-align: center;
  width: 19.253333rem;
  height: 4.053333rem;
}
.main_content {
  margin-top: 0.266667rem;
  background-color: #fff;
  padding: 1.066667rem 0.64rem 0.586667rem 0.64rem;
}
.main_content .instruction {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.main_content .instruction h4 {
  font-size: 0.746667rem;
  margin: 0;
  padding: 0;
  color: #333;
}
.main_content .instruction h4 .icon {
  display: inline-block;
  width: 1.013333rem;
  height: 1.013333rem;
  vertical-align: middle;
}
.main_content .instruction a {
  color: #999;
  font-size: 0.586667rem;
}
.main_content .study {
  position: relative;
  --swiper-navigation-color: #000;
  /* 单独设置按钮颜色 */
  --swiper-navigation-size: 30px;
  /* 设置按钮大小 */
}
.main_content .study .swiper_width_max {
  width: 14.4rem;
}
.main_content .study .swiper-container {
  height: 100%;
}
.main_content .study .swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;
  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  transition: 300ms;
  transform: scale(0.8);
  opacity: 0.5;
}
.main_content .study .swiper-slide a {
  width: 9.013333rem;
  height: 10.026667rem;
}
.main_content .study .swiper-slide a img {
  width: 100%;
  height: 100%;
}
.main_content .study .swiper-slide span {
  display: block;
  width: 9.013333rem;
  font-size: 0.64rem;
}
.main_content .study .swiper-slide-active,
.main_content .study .swiper-slide-duplicate-active {
  transform: scale(1);
  z-index: 999;
  opacity: 1;
}
.main_content_study {
  margin-top: 0.266667rem;
  background-color: #fff;
  padding: 1.066667rem 0.64rem 0.586667rem 0.64rem;
}
.main_content_study .instruction {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.main_content_study .instruction h4 {
  font-size: 0.746667rem;
  margin: 0;
  padding: 0;
  color: #333;
}
.main_content_study .instruction h4 .icon {
  display: inline-block;
  width: 1.013333rem;
  height: 1.013333rem;
  vertical-align: middle;
}
.main_content_study .instruction a {
  color: #999;
  font-size: 0.586667rem;
}
.main_content_study .study {
  padding: 0.266667rem;
}
.main_content_study .study .swiper-container {
  width: 100%;
  height: 100%;
}
.main_content_study .study .swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;
  padding: 0.266667rem;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  /* Center slide text vertically */
  width: 7.733333rem;
  height: 9.066667rem;
  border-radius: 10px;
}
.main_content_study .study .swiper-slide img {
  width: 100%;
}
.main_content_study .study .swiper-slide .title {
  display: block;
  text-align: left;
  font-size: 0.693333rem;
  margin: 0.4rem 0;
}
.main_content_study .study .swiper-slide .num_study {
  margin-top: 1.2rem;
  display: block;
  font-size: 0.693333rem;
  text-align: left;
  color: #FF4400;
}
.main_content_study .study .swiper-slide .num_study span {
  color: grey;
}
footer {
  height: 3.013333rem;
  margin-top: 0.266667rem;
  background-color: #fff;
  display: flex;
}
footer a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
footer a img {
  width: 1.04rem;
  height: 1.093333rem;
}
footer a span {
  color: #666;
  font-size: 0.586667rem;
}
